feat(backtest): saved strategy presets (strategy editor v1)

Persist named backtest-strategy presets so a staking config (bankroll, min-score, stake rule, flat/percent/Kelly params) can be saved, listed, loaded back into the form, and deleted. The per-run date range is not part of a preset. - Domain: SavedStrategy record (name trimmed + bounded to 80 chars, Create() factory) wrapping the pure BacktestStrategy. - Persistence: SavedStrategyEntity + config (TEXT decimals, unique case-insensitive NOCASE index on Name), repository, mapping, and a hand-trimmed AddSavedStrategies migration (additive — only the new table). Case-insensitive names mean save-by-name overwrites instead of creating near-duplicates. - Application: SaveStrategyUseCase (upsert by name, keeps Id+CreatedAt) + DeleteStrategyUseCase. - UI: presets panel on the Backtest page (load/save/delete) + service methods; fraction<->percent round-trip; en/ru resx. - Fix: pin Sports.Code as ValueGeneratedNever — it is the bookmaker's natural sport id, not an autoincrement surrogate. Corrects long-standing model-snapshot drift; the snapshot is regenerated to match the DB. - 25 tests across all four layers: domain validation, real-SQLite round-trip incl. case-insensitive lookup/uniqueness, the upsert use case, and the service percent mapping.
2026-05-29 02:13:16 +03:00
parent 115872aad0
commit 2a0ea7b3a6
26 changed files with 1845 additions and 160 deletions
@@ -35,6 +35,63 @@
        </header>

        <article class="m-card m-card--accented m-backtest__form-card">
+            <div class="m-backtest__presets" data-test="backtest-presets">
+                <div class="m-backtest__presets-head">
+                    <span class="m-backtest__form-label">@L["Backtest.Presets.Label"]</span>
+                    @if (_strategies.Count > 0)
+                    {
+                        <span class="m-backtest__section-count m-mono">@_strategies.Count</span>
+                    }
+                </div>
+
+                @if (_strategies.Count > 0)
+                {
+                    <div class="m-backtest__presets-list">
+                        @foreach (var preset in _strategies)
+                        {
+                            var local = preset;
+                            <div class="m-backtest__preset" data-test="backtest-preset" data-strategy-id="@local.Id">
+                                <button type="button"
+                                        class="m-backtest__preset-load"
+                                        @onclick="() => LoadStrategy(local)"
+                                        data-test="backtest-preset-load">
+                                    <span class="m-backtest__preset-name">@local.Name</span>
+                                    <span class="m-backtest__preset-meta m-mono">@PresetSummary(local)</span>
+                                </button>
+                                <button type="button"
+                                        class="m-backtest__preset-del"
+                                        @onclick="() => DeleteStrategyAsync(local)"
+                                        title="@L["Common.Delete"]"
+                                        aria-label="@L["Common.Delete"]"
+                                        data-test="backtest-preset-delete">×</button>
+                            </div>
+                        }
+                    </div>
+                }
+                else
+                {
+                    <p class="m-backtest__presets-empty">@L["Backtest.Presets.Empty"]</p>
+                }
+
+                <div class="m-backtest__presets-save">
+                    <MudTextField @bind-Value="_strategyName"
+                                  Label="@L["Backtest.Presets.NameLabel"]"
+                                  Variant="Variant.Outlined"
+                                  Margin="Margin.Dense"
+                                  MaxLength="80"
+                                  data-test="backtest-preset-name" />
+                    <button type="button"
+                            class="m-chip m-backtest__preset-save-btn"
+                            @onclick="SaveStrategyAsync"
+                            disabled="@_savingStrategy"
+                            data-test="backtest-preset-save">
+                        <span>@L["Backtest.Presets.Save"]</span>
+                    </button>
+                </div>
+            </div>
+
+            <hr class="m-rule" />
+
            <div class="m-backtest__form-grid">
                <div class="m-backtest__form-field">
                    <label class="m-backtest__form-label">@L["Backtest.Field.Bankroll"]</label>
@@ -421,6 +478,87 @@
        .m-backtest__submit-glyph.is-spinning { animation: none; }
    }

+    /* ---- Saved-strategy presets ---- */
+    .m-backtest__presets { display: grid; gap: var(--m-space-3); }
+    .m-backtest__presets-head {
+        display: flex;
+        align-items: baseline;
+        justify-content: space-between;
+        gap: var(--m-space-3);
+    }
+    .m-backtest__presets-list {
+        display: flex;
+        flex-wrap: wrap;
+        gap: var(--m-space-2);
+    }
+    .m-backtest__preset {
+        display: inline-flex;
+        align-items: stretch;
+        border: 1px solid var(--m-c-rule);
+        background: var(--m-c-paper);
+        transition: border-color 120ms ease, background 120ms ease;
+    }
+    .m-backtest__preset:hover { border-color: var(--m-c-accent); background: var(--m-c-paper-2); }
+    .m-backtest__preset-load {
+        display: grid;
+        gap: 2px;
+        padding: 6px 10px;
+        background: transparent;
+        border: 0;
+        cursor: pointer;
+        text-align: left;
+        color: inherit;
+    }
+    .m-backtest__preset-name {
+        font-size: 0.8125rem;
+        font-weight: 600;
+        color: var(--m-c-ink);
+    }
+    .m-backtest__preset-meta {
+        font-size: 0.6875rem;
+        letter-spacing: 0.04em;
+        color: var(--m-c-ink-soft);
+    }
+    .m-backtest__preset-del {
+        align-self: stretch;
+        padding: 0 10px;
+        border: 0;
+        border-left: 1px solid var(--m-c-rule);
+        background: transparent;
+        color: var(--m-c-ink-soft);
+        cursor: pointer;
+        font-size: 1rem;
+        line-height: 1;
+        transition: color 120ms ease, background 120ms ease;
+    }
+    .m-backtest__preset-del:hover { color: var(--m-c-anomaly); background: rgba(220, 38, 38, 0.08); }
+    .m-backtest__presets-empty {
+        margin: 0;
+        font-size: 0.8125rem;
+        color: var(--m-c-ink-soft);
+    }
+    .m-backtest__presets-save {
+        display: flex;
+        align-items: center;
+        gap: var(--m-space-3);
+        flex-wrap: wrap;
+    }
+    .m-backtest__presets-save .mud-input-control { flex: 1 1 220px; min-width: 200px; }
+    .m-backtest__preset-save-btn {
+        border-color: var(--m-c-ink-soft);
+        color: var(--m-c-ink);
+        font-family: var(--m-font-mono);
+        font-size: 0.75rem;
+        text-transform: uppercase;
+        letter-spacing: 0.14em;
+        padding: 8px 16px;
+    }
+    .m-backtest__preset-save-btn:not(:disabled):hover { border-color: var(--m-c-accent); color: var(--m-c-accent); }
+    .m-backtest__preset-save-btn:disabled { opacity: 0.6; cursor: progress; }
+    @@media (prefers-reduced-motion: reduce) {
+        .m-backtest__preset, .m-backtest__preset-del, .m-backtest__preset-save-btn { transition: none; }
+    }
+
    /* ---- KPI strip ---- */
    .m-backtest__kpis {
        display: grid;
@@ -636,6 +774,89 @@
    private string? _formError;
    private CancellationTokenSource? _runCts;

+    private IReadOnlyList<SavedStrategyVm> _strategies = Array.Empty<SavedStrategyVm>();
+    private string _strategyName = string.Empty;
+    private bool _savingStrategy;
+
+    protected override async Task OnInitializedAsync() => await ReloadStrategiesAsync();
+
+    private async Task ReloadStrategiesAsync()
+    {
+        try
+        {
+            _strategies = await Service.ListStrategiesAsync(CancellationToken.None);
+        }
+        catch (Exception ex)
+        {
+            Logger.LogError(ex, "Failed to load saved strategies.");
+            _strategies = Array.Empty<SavedStrategyVm>();
+        }
+    }
+
+    private void LoadStrategy(SavedStrategyVm preset)
+    {
+        preset.ApplyTo(_form);
+        _strategyName = preset.Name;
+        _formError = null;
+        Snackbar.Add(L["Backtest.Presets.Loaded"].Value, Severity.Info);
+    }
+
+    private async Task SaveStrategyAsync()
+    {
+        if (_savingStrategy) return;
+
+        if (string.IsNullOrWhiteSpace(_strategyName))
+        {
+            _formError = L["Backtest.Presets.NameRequired"].Value;
+            StateHasChanged();
+            return;
+        }
+
+        _savingStrategy = true;
+        _formError = null;
+        try
+        {
+            await Service.SaveStrategyAsync(_strategyName, _form, CancellationToken.None);
+            await ReloadStrategiesAsync();
+            Snackbar.Add(L["Backtest.Presets.Saved"].Value, Severity.Success);
+        }
+        catch (ArgumentException ex)
+        {
+            _formError = ex.Message;
+        }
+        catch (Exception ex)
+        {
+            Logger.LogError(ex, "Failed to save strategy preset.");
+            Snackbar.Add(L["Backtest.Error.Generic"].Value, Severity.Error);
+        }
+        finally
+        {
+            _savingStrategy = false;
+        }
+    }
+
+    private async Task DeleteStrategyAsync(SavedStrategyVm preset)
+    {
+        try
+        {
+            await Service.DeleteStrategyAsync(preset.Id, CancellationToken.None);
+            await ReloadStrategiesAsync();
+            Snackbar.Add(L["Backtest.Presets.Deleted"].Value, Severity.Info);
+        }
+        catch (Exception ex)
+        {
+            Logger.LogError(ex, "Failed to delete strategy preset.");
+            Snackbar.Add(L["Backtest.Error.Generic"].Value, Severity.Error);
+        }
+    }
+
+    private string PresetSummary(SavedStrategyVm s) => string.Format(
+        CultureInfo.InvariantCulture,
+        "{0} · ≥{1:0.00} · {2}",
+        s.StartingBankroll.ToString("0", CultureInfo.InvariantCulture),
+        s.MinScore,
+        StakeRuleLabel(s.StakeRule));
+
    private async Task RunAsync()
    {
        if (_running) return;
@@ -162,6 +162,7 @@
  <data name="Common.Reset"><value>Reset</value></data>
  <data name="Common.Loading"><value>Loading…</value></data>
  <data name="Common.Empty"><value>No data</value></data>
+  <data name="Common.Delete"><value>Delete</value></data>
  <data name="Common.Yes"><value>Yes</value></data>
  <data name="Common.No"><value>No</value></data>

@@ -510,4 +511,12 @@
  <data name="Backtest.Empty.NoData"><value>No graded anomalies to simulate yet. Run the results loader so the detector has outcomes to replay against.</value></data>
  <data name="Backtest.Empty.NoBetsPlaced"><value>The strategy placed zero bets — try lowering the score threshold, or switch staking rule.</value></data>
  <data name="Backtest.Error.Generic"><value>Simulation failed — check the form values and try again.</value></data>
+  <data name="Backtest.Presets.Label"><value>Saved strategies</value></data>
+  <data name="Backtest.Presets.NameLabel"><value>Preset name</value></data>
+  <data name="Backtest.Presets.Save"><value>Save preset</value></data>
+  <data name="Backtest.Presets.Empty"><value>No saved strategies yet — tune the form, name it, and save a reusable preset.</value></data>
+  <data name="Backtest.Presets.Loaded"><value>Strategy loaded</value></data>
+  <data name="Backtest.Presets.Saved"><value>Strategy saved</value></data>
+  <data name="Backtest.Presets.Deleted"><value>Strategy deleted</value></data>
+  <data name="Backtest.Presets.NameRequired"><value>Enter a name to save this strategy.</value></data>
 </root>
@@ -174,6 +174,7 @@
  <data name="Common.Reset"><value>Сбросить</value></data>
  <data name="Common.Loading"><value>Загрузка…</value></data>
  <data name="Common.Empty"><value>Нет данных</value></data>
+  <data name="Common.Delete"><value>Удалить</value></data>
  <data name="Common.Yes"><value>Да</value></data>
  <data name="Common.No"><value>Нет</value></data>

@@ -523,4 +524,12 @@
  <data name="Backtest.Empty.NoData"><value>Аномалий с результатом ещё нет. Запустите загрузчик результатов, чтобы симулятору было на чём прогоняться.</value></data>
  <data name="Backtest.Empty.NoBetsPlaced"><value>Стратегия не сделала ни одной ставки — снизьте порог score или поменяйте правило стейкинга.</value></data>
  <data name="Backtest.Error.Generic"><value>Симуляция упала — проверьте параметры формы и повторите.</value></data>
+  <data name="Backtest.Presets.Label"><value>Сохранённые стратегии</value></data>
+  <data name="Backtest.Presets.NameLabel"><value>Название пресета</value></data>
+  <data name="Backtest.Presets.Save"><value>Сохранить пресет</value></data>
+  <data name="Backtest.Presets.Empty"><value>Сохранённых стратегий пока нет — настройте форму, дайте имя и сохраните пресет для повторного использования.</value></data>
+  <data name="Backtest.Presets.Loaded"><value>Стратегия загружена</value></data>
+  <data name="Backtest.Presets.Saved"><value>Стратегия сохранена</value></data>
+  <data name="Backtest.Presets.Deleted"><value>Стратегия удалена</value></data>
+  <data name="Backtest.Presets.NameRequired"><value>Введите название, чтобы сохранить стратегию.</value></data>
 </root>
@@ -1,19 +1,32 @@
+using Marathon.Application.Abstractions;
 using Marathon.Application.UseCases;
+using Marathon.Domain.Backtesting;

 namespace Marathon.UI.Services;

 /// <summary>
-/// Page-facing implementation of <see cref="IBacktestService"/>. The use case
-/// hands back per-event titles inside the result so the service does no
-/// repository I/O of its own.
+/// Page-facing implementation of <see cref="IBacktestService"/>. The run use case
+/// hands back per-event titles inside the result so the service does no repository
+/// I/O for runs; saved-strategy reads go straight to the repository, writes through
+/// the save/delete use cases.
 /// </summary>
 public sealed class BacktestService : IBacktestService
 {
    private readonly RunBacktestUseCase _useCase;
+    private readonly SaveStrategyUseCase _saveStrategy;
+    private readonly DeleteStrategyUseCase _deleteStrategy;
+    private readonly ISavedStrategyRepository _strategies;

-    public BacktestService(RunBacktestUseCase useCase)
+    public BacktestService(
+        RunBacktestUseCase useCase,
+        SaveStrategyUseCase saveStrategy,
+        DeleteStrategyUseCase deleteStrategy,
+        ISavedStrategyRepository strategies)
    {
        _useCase = useCase ?? throw new ArgumentNullException(nameof(useCase));
+        _saveStrategy = saveStrategy ?? throw new ArgumentNullException(nameof(saveStrategy));
+        _deleteStrategy = deleteStrategy ?? throw new ArgumentNullException(nameof(deleteStrategy));
+        _strategies = strategies ?? throw new ArgumentNullException(nameof(strategies));
    }

    public async Task<BacktestVm> RunAsync(BacktestForm form, CancellationToken ct)
@@ -58,4 +71,37 @@ public sealed class BacktestService : IBacktestService
            Trace: rows,
            EquityCurve: curve);
    }
+
+    public async Task<IReadOnlyList<SavedStrategyVm>> ListStrategiesAsync(CancellationToken ct)
+    {
+        var presets = await _strategies.ListAsync(ct).ConfigureAwait(false);
+        return presets.Select(ToVm).ToList();
+    }
+
+    public async Task<SavedStrategyVm> SaveStrategyAsync(string name, BacktestForm form, CancellationToken ct)
+    {
+        ArgumentNullException.ThrowIfNull(form);
+
+        // Reuse the form's own validation so an invalid preset can never be persisted.
+        if (!form.IsValid(out var err))
+            throw new ArgumentException(err ?? "Invalid form.", nameof(form));
+
+        var saved = await _saveStrategy.ExecuteAsync(name, form.ToStrategy(), ct).ConfigureAwait(false);
+        return ToVm(saved);
+    }
+
+    public Task DeleteStrategyAsync(Guid id, CancellationToken ct) =>
+        _deleteStrategy.ExecuteAsync(id, ct);
+
+    private static SavedStrategyVm ToVm(SavedStrategy s) =>
+        new(
+            Id: s.Id,
+            Name: s.Name,
+            StartingBankroll: s.Strategy.StartingBankroll,
+            MinScore: s.Strategy.MinScore,
+            StakeRule: s.Strategy.StakeRule,
+            FlatStake: s.Strategy.FlatStake,
+            // Domain stores fractions; the form/VM speak percentages.
+            PercentOfBankrollPercent: s.Strategy.PercentOfBankroll * 100m,
+            KellyFractionPercent: s.Strategy.KellyFraction * 100m);
 }
@@ -115,3 +115,35 @@ public sealed record BacktestTraceRow(
 /// <param name="DetectedAt">When the bet would have been placed.</param>
 /// <param name="Bankroll">Bankroll after this bet settled.</param>
 public sealed record EquityPoint(DateTimeOffset DetectedAt, decimal Bankroll);
+
+/// <summary>
+/// UI projection of a persisted <see cref="Marathon.Domain.Backtesting.SavedStrategy"/>.
+/// Percent fields are pre-scaled to 0–100 to match the form bindings; the per-run
+/// date range is intentionally not part of a preset.
+/// </summary>
+public sealed record SavedStrategyVm(
+    Guid Id,
+    string Name,
+    decimal StartingBankroll,
+    decimal MinScore,
+    StakeRule StakeRule,
+    decimal FlatStake,
+    decimal PercentOfBankrollPercent,
+    decimal KellyFractionPercent)
+{
+    /// <summary>
+    /// Copies this preset's staking parameters onto <paramref name="form"/>, leaving
+    /// the form's <see cref="BacktestForm.From"/>/<see cref="BacktestForm.To"/> date
+    /// range untouched (scope is a per-run choice, not part of the preset).
+    /// </summary>
+    public void ApplyTo(BacktestForm form)
+    {
+        ArgumentNullException.ThrowIfNull(form);
+        form.StartingBankroll = StartingBankroll;
+        form.MinScore = MinScore;
+        form.StakeRule = StakeRule;
+        form.FlatStake = FlatStake;
+        form.PercentOfBankrollPercent = PercentOfBankrollPercent;
+        form.KellyFractionPercent = KellyFractionPercent;
+    }
+}
@@ -10,4 +10,17 @@ public interface IBacktestService
    /// <summary>Validates the form, runs the simulator, projects for the UI.</summary>
    /// <exception cref="ArgumentException">Form fails its own validation.</exception>
    Task<BacktestVm> RunAsync(BacktestForm form, CancellationToken ct);
+
+    /// <summary>Every saved strategy preset, name-ascending.</summary>
+    Task<IReadOnlyList<SavedStrategyVm>> ListStrategiesAsync(CancellationToken ct);
+
+    /// <summary>
+    /// Saves the current form as a named preset (upsert by name). Validates the
+    /// form first, exactly like <see cref="RunAsync"/>.
+    /// </summary>
+    /// <exception cref="ArgumentException">Form is invalid, or the name is empty/too long.</exception>
+    Task<SavedStrategyVm> SaveStrategyAsync(string name, BacktestForm form, CancellationToken ct);
+
+    /// <summary>Deletes a saved preset by id. No-op when the id is unknown.</summary>
+    Task DeleteStrategyAsync(Guid id, CancellationToken ct);
 }